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Getting DuplicateMessageException while decrypting an Omemo encrypted message from ChatSecure-iOS.

Question asked by Vishnu Prajapati on Aug 3, 2017
Latest reply on Sep 8, 2017 by Paul Schaub

Hi,

We are getting a DuplicateMessageException while decrypting an Omemo encrypted message from ChatSecure(iOS). Omemo encryption is working fine with android to android. Getting following errors from smack:

 

- SignalOmemoSession: Error decrypting message header, org.whispersystems.libsignal.DuplicateMessageException: Received message with old counter: 1 , 0

- OmemoService: internal omemoMessageListener failed to decrypt incoming OMEMO message: MessageKey has wrong length: 16. Probably legacy auth tag format.

 

Please help me to find the cause for this incompatibility between chatSecure-iOS and our smack framework.

 

Thanks

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